[AZ-Observing] Tonight's Seeing Conditions and Digital Images
- From: Tom Polakis <polakis@xxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Tue, 08 Jan 2002 21:49:28 -0700
I hope some folks are looking at the planets from the back yards tonight.
There's not a breath of wind, and the same can nearly be said for image
movement. Saturn is crisp at 500x, with Enceladus showing up just 15" west
of the ring at magnitude 12. Only halfway to the zenith, Jupiter is
similarly impressive; the south equatorial belt is filled with festoons,
and the satellites are showing unique discs.
I wasted some time that could have been better spent looking by making a
foray into digital planetary imaging. Using a 10-inch f/5.6, 9mm Modified
Achromat eyepiece that comes with the 60mm ETX (honest), and a Nikon
Coolpix 995, my first results are at:
http://www.psiaz.com/polakis/planets_digital/jupiter_010802a.jpg
http://www.psiaz.com/polakis/planets_digital/saturn_010802a.jpg
The advanced way to shoot planets is to stack dozens of images. These are
single images hastily posted. Due to the noise, I went the opposite
direction of unsharp masking and did a slight median filter on both images.
I'm encouraged by how simple it was to get planetary images that are
better than the best I had ever captured on film.
Tom
---
Tom Polakis
Tempe, AZ
Arizona Sky Pages
http://www.psiaz.com/polakis/
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